A5063394931- Pulsars and Gravitational Waves Research
- Atmospheric Ozone and Climate
- Solar and Space Plasma Dynamics
- High-pressure geophysics and materials
- Ionosphere and magnetosphere dynamics
- Astrophysical Phenomena and Observations
- Gamma-ray bursts and supernovae
- History and Developments in Astronomy
- Atmospheric aerosols and clouds
- Earthquake Detection and Analysis
- Stellar, planetary, and galactic studies
- Cosmology and Gravitation Theories
- Astrophysics and Star Formation Studies
- Geophysics and Gravity Measurements
- Space Science and Extraterrestrial Life
- Galaxies: Formation, Evolution, Phenomena
- Tropical and Extratropical Cyclones Research
- Black Holes and Theoretical Physics
- Space exploration and regulation
- Medical Imaging Techniques and Applications
- Astronomy and Astrophysical Research
University of Oregon
2022
Montana State University
2019-2020
Virginia Tech
2020
We introduce a semi-parametric model for the primary mass distribution of binary black holes (BBHs) observed with gravitational waves (GWs) that applies cubic-spline perturbation to power law. apply this 46 BBHs included in second wave transient catalog (GWTC-2). The spline recovers consistent previous results, corroborating existence peak at $35\,M_\odot$ ($>97\%$ credibility) found \textsc{Powerlaw+Peak} model. could be result pulsational pair-instability supernovae (PPISNe). finds...
Abstract The 21 August 2017 total solar eclipse was the first on mainland of United States since 1979. Atmospheric Responses Total Solar Eclipse (ARTSE2017) project created to observe response atmosphere shadow moon. During eclipse, 10 sites launched radiosondes in a very rapid, serial weather balloon deployment along totality path, and high-resolution mesoscale meteorological network (mesonet) data were collected three states. Here, we focus results obtained from radiosonde field campaign...
Atmospheric gravity waves generated by an eclipse were first proposed in 1970. Despite numerous efforts since, there has been no definitive evidence for the lower to middle atmosphere. Measuring wave characteristics produced a definite forcing event such as provides crucial knowledge developing more accurate physical descriptions of waves. These are fundamental transport energy and momentum throughout atmosphere their parameterization or simulation numerical models increased accuracy...
Electromagnetic observations have been used over the past decades to understand nature of black holes and material around them. Our ability learn about fundamental physics relies on our understanding two key ingredients in modeling these electromagnetic observations: gravity theory that describes hole, astrophysics produces observed radiation. In this work we study current constrain detect deviations from general relativity using accretion disk spectrum stellar-mass binary systems. analysis...
Observations of gravitational waves (GWs) from merging compact binaries have become a regular occurrence. The continued advancement the LIGO-Virgo-KAGRA (LVK) Collaboration detectors now produced catalog over 90 such mergers, which we can begin to uncover formation history binaries. In this work, search for subpopulations in LVK's third wave transient (GWTC-3) by incorporating discrete latent variables hierarchical Bayesian inference framework probabilistically assign each BBH observation...
Abstract We propose a new method to determine the electron velocity (EV) distribution function in intracluster gas (ICG) clusters of galaxies based on frequency dependence Sunyaev–Zel’dovich (SZ) effect. It is generally accepted that relativistic equilibrium EV one suggested by Jüttner. However, there an ongoing debate foundation kinetic theory, and other distributions have also been proposed. The mildly ICG provides unique laboratory test theories. carried out Monte Carlo simulations...